/*
 * Tencent is pleased to support the open source community by making Angel available.
 *
 * Copyright (C) 2017-2018 THL A29 Limited, a Tencent company. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in 
 * compliance with the License. You may obtain a copy of the License at
 *
 * https://opensource.org/licenses/Apache-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 *
 */


package com.tencent.angel.webapp.page;

import com.google.common.collect.Lists;
import org.apache.hadoop.yarn.webapp.SubView;
import org.apache.hadoop.yarn.webapp.view.HtmlPage;
import org.apache.hadoop.yarn.webapp.view.JQueryUI;
import org.apache.hadoop.yarn.webapp.view.LipsumBlock;

import java.util.List;

import static org.apache.hadoop.yarn.util.StringHelper.join;

// import org.apache.hadoop.yarn.webapp.view.FooterBlock;
// import org.apache.hadoop.yarn.webapp.view.HeaderBlock;


public class TwoColumnLayout2 extends HtmlPage {

  @Override protected void render(Page.HTML<_> html) {
    preHead(html);
    html.title($(TITLE)).link(root_url("static", "yarn.css"))
      .style("#layout { height: 100%; }", "#layout thead td { height: 3em; }",
        "#layout #navcell { width: 11em; padding: 0 1em; }",
        "#layout td.content { padding-top: 0 }", "#layout tbody { vertical-align: top; }",
        "#layout tfoot td { height: 4em; }")._(JQueryUI.class);
    postHead(html);
    // JQueryUI.jsnotice(html);
    html.table("#layout.ui-widget-content").thead().tr().td().$colspan(2)._(header())._()._()._()
      .tfoot().tr().td().$colspan(2)._(footer())._()._()._().tbody().tr().td().$id("navcell")
      ._(nav())._().td().$class("content")._(content())._()._()._()._()._();
  }

  /**
   * Do what needs to be done before the header is rendered. This usually involves setting page
   * variables for Javascript and CSS rendering.
   *
   * @param html the html to use to render.
   */
  protected void preHead(Page.HTML<_> html) {
  }

  /**
   * Do what needs to be done after the header is rendered.
   *
   * @param html the html to use to render.
   */
  protected void postHead(Page.HTML<_> html) {
  }

  /**
   * @return the class that will render the header of the page.
   */

  protected Class<? extends SubView> header() {
    return HeaderBlock.class;
  }

  /**
   * @return the class that will render the content of the page.
   */
  protected Class<? extends SubView> content() {
    return LipsumBlock.class;
  }

  /**
   * @return the class that will render the navigation bar.
   */
  protected Class<? extends SubView> nav() {
    return NavBlock.class;
  }

  /**
   * @return the class that will render the footer.
   */
  protected Class<? extends SubView> footer() {
    return FooterBlock.class;
  }

  /**
   * Sets up a table to be a consistent style.
   *
   * @param html        the HTML to use to render.
   * @param tableId     the ID of the table to set styles on.
   * @param innerStyles any other styles to add to the table.
   */
  protected void setTableStyles(Page.HTML<_> html, String tableId, String... innerStyles) {
    List<String> styles = Lists.newArrayList();
    styles.add(join('#', tableId, "_paginate span {font-weight:normal}"));
    styles.add(join('#', tableId, " .progress {width:8em}"));
    styles.add(join('#', tableId, "_processing {top:-1.5em; font-size:1em;"));
    styles.add("  color:#000; background:rgba(255, 255, 255, 0.8)}");
    for (String style : innerStyles) {
      styles.add(join('#', tableId, " ", style));
    }
    html.style(styles.toArray());
  }
}
